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Method for testing leakage admittance between rails of uninsulated audio frequency track circuit

A technology of audio track and test method, which is applied in the field of testing, can solve the problems of tediousness, high testing cost, and inapplicability, and achieve the effect of simple testing equipment

Active Publication Date: 2013-01-02
ZHEJIANG NORMAL UNIVERSITY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional open circuit and short circuit methods are no longer applicable to audio track circuits without insulation
As for using the two-time short-circuit method to measure the primary parameters of the non-insulated audio track circuit, this method is suitable for the primary parameter test of the newly built track railway under the condition of special test equipment, but for the daily signal maintenance of the existing railway, it is necessary This method is too cumbersome and expensive to test

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  • Method for testing leakage admittance between rails of uninsulated audio frequency track circuit
  • Method for testing leakage admittance between rails of uninsulated audio frequency track circuit
  • Method for testing leakage admittance between rails of uninsulated audio frequency track circuit

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] refer to Figure 4 Shown is a flow chart of a method for testing leakage admittance between tracks of an uninsulated audio track circuit of the present invention. The present invention proposes a test method for leakage admittance between tracks of an uninsulated audio track circuit, which specifically includes the following steps:

[0031] First, the corresponding relationship between the input current of the track circuit and the leakage admittance be...

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Abstract

The invention provides a method for testing leakage admittance between rails of an uninsulated audio frequency track circuit. The method comprises the following steps of: s1: establishing a passive chain network of a track; s2: constructing a circuit equation of a track circuit passive network; s3: measuring input current of a track circuit feeding end; and s4: calculating the leakage admittance G0 between rails. By the method, during the process of testing the leakage admittance between rails of the running rail circuit, the needed conditions can be obtained without making the rail circuit to be in short circuit; and the testing equipment is simple and convenient.

Description

technical field [0001] The invention relates to a test method, in particular to a fast and simple test method for leakage admittance between tracks of an uninsulated audio track circuit. Background technique [0002] For engineering design, equipment development, daily maintenance and other work, the simulation of audio track circuit has great significance. Through computer simulation, the state of the audio track circuit under various actual use conditions can be judged: the adjustment state, the branch state and the broken track state, and it has positive effects on the division of the track circuit section and the adjustment of the working state. significance. [0003] One of the prerequisites for the simulation calculation of the audio track circuit is based on the accurate primary parameters of the track circuit. Measuring the primary parameters of the track circuit is a regular work in signal maintenance. The calculation and adjustment of the track circuit, as well ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/02
Inventor 吴金洪叶建忠韦强项小强朱喜林丁赛华鄂世举邹翔吴汶麒
Owner ZHEJIANG NORMAL UNIVERSITY